Holcombe Coughlin & Associates

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Rod Holcombe | Tim Coughlin
Consulting | 3D modeling | 3D modeling packages | Target Generation | Training | Software development
GEOrient | GeoCalculator | GeoMapSymbol link | GeoMapVector | Strain Calculator | GeoFryplots link | Ghoshflow
Entry-level Underground mapping Basic structure Thin-skinned structure Ductile structure Advanced Structure
Oriented Core templates | Structural plotting templates | Field Training Manual | Database fundamentals manual | animations
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Free downloads

The following HCA-developed brochures and manuals are available for free download.

Oriented drillcore: Measurement and calculation procedures Pdf file that includes full description of oriented core procedures; including extracting structural information from unoriented core; instructions for manual stereographic plotting of core data; bias and error detection [~4Mb]

Textbook preview of contents: Mapping and Structural Geology in Metals Exploration Pdf file of Contents and Introduction pages from upcoming field manual (135p) used in training courses.
The text, which will be publicly released early in 2010, is aimed at professional geologists requiring elements of revision of basic field structure in orogenic domains (~200kb).

Oriented core printable wrap-around protractors for measuring alpha and beta angle [~4.3Mb]Printable wrap-around protractors for measuring alpha and beta angles in oriented drill core, plus simplified scaled logging sheets for rapid logs. [~5 Mb]

Database and GIS fundaments:OR
'There is a difference between a spreadsheet and a database'
Manual covering the basic requirements of a database; the do's and don'ts of using Excel spreadsheets as databases; the fundamentals of relational databases; GIS packages as databases; and the fundamentals of datums and projections. [Pdf file~700kb];

Graphical templates for plotting structural data Pdf file that includes stereographic projection nets (polar and equatorial); rose diagram templates, counting nets,... Other graphical templates will continue to be added so keep an eye on updates. (~2Mb)

AnimationsThis link takes you to a download page for animations developed by Rod Holcombe at The University of Queensland for use in structural geology teaching. They include demonstrations of folding and boudinage of planes in a homogeneous strain field, development of gash veins, fabrics in shear zones, etc .

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